An individual software application program or group of programs, routines or algorithms designed for use in, or together with, other devices such as a computer, a digital hearing aid, or formated into a compact disc read-only memory (CD-ROM) or an MP3 format to enable it to provide generated noise of sufficient intensity and bandwidth to mask (make less noticeable and provide temporary relief from) tinnitus (a ringing sound in the ear or internal head noises). The basic set of applications programs and routines can be upgraded to add new system capabilities. Application program packages are typically identified by a proprietary name and "version" or "upgrade" number.